xref: /onnv-gate/usr/src/common/openssl/crypto/conf/conf_api.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /* conf_api.c */
2*0Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3*0Sstevel@tonic-gate  * All rights reserved.
4*0Sstevel@tonic-gate  *
5*0Sstevel@tonic-gate  * This package is an SSL implementation written
6*0Sstevel@tonic-gate  * by Eric Young (eay@cryptsoft.com).
7*0Sstevel@tonic-gate  * The implementation was written so as to conform with Netscapes SSL.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * This library is free for commercial and non-commercial use as long as
10*0Sstevel@tonic-gate  * the following conditions are aheared to.  The following conditions
11*0Sstevel@tonic-gate  * apply to all code found in this distribution, be it the RC4, RSA,
12*0Sstevel@tonic-gate  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13*0Sstevel@tonic-gate  * included with this distribution is covered by the same copyright terms
14*0Sstevel@tonic-gate  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15*0Sstevel@tonic-gate  *
16*0Sstevel@tonic-gate  * Copyright remains Eric Young's, and as such any Copyright notices in
17*0Sstevel@tonic-gate  * the code are not to be removed.
18*0Sstevel@tonic-gate  * If this package is used in a product, Eric Young should be given attribution
19*0Sstevel@tonic-gate  * as the author of the parts of the library used.
20*0Sstevel@tonic-gate  * This can be in the form of a textual message at program startup or
21*0Sstevel@tonic-gate  * in documentation (online or textual) provided with the package.
22*0Sstevel@tonic-gate  *
23*0Sstevel@tonic-gate  * Redistribution and use in source and binary forms, with or without
24*0Sstevel@tonic-gate  * modification, are permitted provided that the following conditions
25*0Sstevel@tonic-gate  * are met:
26*0Sstevel@tonic-gate  * 1. Redistributions of source code must retain the copyright
27*0Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer.
28*0Sstevel@tonic-gate  * 2. Redistributions in binary form must reproduce the above copyright
29*0Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer in the
30*0Sstevel@tonic-gate  *    documentation and/or other materials provided with the distribution.
31*0Sstevel@tonic-gate  * 3. All advertising materials mentioning features or use of this software
32*0Sstevel@tonic-gate  *    must display the following acknowledgement:
33*0Sstevel@tonic-gate  *    "This product includes cryptographic software written by
34*0Sstevel@tonic-gate  *     Eric Young (eay@cryptsoft.com)"
35*0Sstevel@tonic-gate  *    The word 'cryptographic' can be left out if the rouines from the library
36*0Sstevel@tonic-gate  *    being used are not cryptographic related :-).
37*0Sstevel@tonic-gate  * 4. If you include any Windows specific code (or a derivative thereof) from
38*0Sstevel@tonic-gate  *    the apps directory (application code) you must include an acknowledgement:
39*0Sstevel@tonic-gate  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40*0Sstevel@tonic-gate  *
41*0Sstevel@tonic-gate  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42*0Sstevel@tonic-gate  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43*0Sstevel@tonic-gate  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44*0Sstevel@tonic-gate  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45*0Sstevel@tonic-gate  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46*0Sstevel@tonic-gate  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47*0Sstevel@tonic-gate  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48*0Sstevel@tonic-gate  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49*0Sstevel@tonic-gate  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50*0Sstevel@tonic-gate  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51*0Sstevel@tonic-gate  * SUCH DAMAGE.
52*0Sstevel@tonic-gate  *
53*0Sstevel@tonic-gate  * The licence and distribution terms for any publically available version or
54*0Sstevel@tonic-gate  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55*0Sstevel@tonic-gate  * copied and put under another distribution licence
56*0Sstevel@tonic-gate  * [including the GNU Public Licence.]
57*0Sstevel@tonic-gate  */
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate /* Part of the code in here was originally in conf.c, which is now removed */
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate #ifndef CONF_DEBUG
62*0Sstevel@tonic-gate # undef NDEBUG /* avoid conflicting definitions */
63*0Sstevel@tonic-gate # define NDEBUG
64*0Sstevel@tonic-gate #endif
65*0Sstevel@tonic-gate 
66*0Sstevel@tonic-gate #include <assert.h>
67*0Sstevel@tonic-gate #include <string.h>
68*0Sstevel@tonic-gate #include <openssl/conf.h>
69*0Sstevel@tonic-gate #include <openssl/conf_api.h>
70*0Sstevel@tonic-gate #include "e_os.h"
71*0Sstevel@tonic-gate 
72*0Sstevel@tonic-gate static void value_free_hash(CONF_VALUE *a, LHASH *conf);
73*0Sstevel@tonic-gate static void value_free_stack(CONF_VALUE *a,LHASH *conf);
74*0Sstevel@tonic-gate static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE *, LHASH *)
75*0Sstevel@tonic-gate static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_stack, CONF_VALUE *, LHASH *)
76*0Sstevel@tonic-gate /* We don't use function pointer casting or wrapper functions - but cast each
77*0Sstevel@tonic-gate  * callback parameter inside the callback functions. */
78*0Sstevel@tonic-gate /* static unsigned long hash(CONF_VALUE *v); */
79*0Sstevel@tonic-gate static unsigned long hash(const void *v_void);
80*0Sstevel@tonic-gate /* static int cmp_conf(CONF_VALUE *a,CONF_VALUE *b); */
81*0Sstevel@tonic-gate static int cmp_conf(const void *a_void,const void *b_void);
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate /* Up until OpenSSL 0.9.5a, this was get_section */
_CONF_get_section(const CONF * conf,const char * section)84*0Sstevel@tonic-gate CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
85*0Sstevel@tonic-gate 	{
86*0Sstevel@tonic-gate 	CONF_VALUE *v,vv;
87*0Sstevel@tonic-gate 
88*0Sstevel@tonic-gate 	if ((conf == NULL) || (section == NULL)) return(NULL);
89*0Sstevel@tonic-gate 	vv.name=NULL;
90*0Sstevel@tonic-gate 	vv.section=(char *)section;
91*0Sstevel@tonic-gate 	v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
92*0Sstevel@tonic-gate 	return(v);
93*0Sstevel@tonic-gate 	}
94*0Sstevel@tonic-gate 
95*0Sstevel@tonic-gate /* Up until OpenSSL 0.9.5a, this was CONF_get_section */
STACK_OF(CONF_VALUE)96*0Sstevel@tonic-gate STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
97*0Sstevel@tonic-gate 					       const char *section)
98*0Sstevel@tonic-gate 	{
99*0Sstevel@tonic-gate 	CONF_VALUE *v;
100*0Sstevel@tonic-gate 
101*0Sstevel@tonic-gate 	v=_CONF_get_section(conf,section);
102*0Sstevel@tonic-gate 	if (v != NULL)
103*0Sstevel@tonic-gate 		return((STACK_OF(CONF_VALUE) *)v->value);
104*0Sstevel@tonic-gate 	else
105*0Sstevel@tonic-gate 		return(NULL);
106*0Sstevel@tonic-gate 	}
107*0Sstevel@tonic-gate 
_CONF_add_string(CONF * conf,CONF_VALUE * section,CONF_VALUE * value)108*0Sstevel@tonic-gate int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
109*0Sstevel@tonic-gate 	{
110*0Sstevel@tonic-gate 	CONF_VALUE *v = NULL;
111*0Sstevel@tonic-gate 	STACK_OF(CONF_VALUE) *ts;
112*0Sstevel@tonic-gate 
113*0Sstevel@tonic-gate 	ts = (STACK_OF(CONF_VALUE) *)section->value;
114*0Sstevel@tonic-gate 
115*0Sstevel@tonic-gate 	value->section=section->section;
116*0Sstevel@tonic-gate 	if (!sk_CONF_VALUE_push(ts,value))
117*0Sstevel@tonic-gate 		{
118*0Sstevel@tonic-gate 		return 0;
119*0Sstevel@tonic-gate 		}
120*0Sstevel@tonic-gate 
121*0Sstevel@tonic-gate 	v = (CONF_VALUE *)lh_insert(conf->data, value);
122*0Sstevel@tonic-gate 	if (v != NULL)
123*0Sstevel@tonic-gate 		{
124*0Sstevel@tonic-gate 		sk_CONF_VALUE_delete_ptr(ts,v);
125*0Sstevel@tonic-gate 		OPENSSL_free(v->name);
126*0Sstevel@tonic-gate 		OPENSSL_free(v->value);
127*0Sstevel@tonic-gate 		OPENSSL_free(v);
128*0Sstevel@tonic-gate 		}
129*0Sstevel@tonic-gate 	return 1;
130*0Sstevel@tonic-gate 	}
131*0Sstevel@tonic-gate 
_CONF_get_string(const CONF * conf,const char * section,const char * name)132*0Sstevel@tonic-gate char *_CONF_get_string(const CONF *conf, const char *section, const char *name)
133*0Sstevel@tonic-gate 	{
134*0Sstevel@tonic-gate 	CONF_VALUE *v,vv;
135*0Sstevel@tonic-gate 	char *p;
136*0Sstevel@tonic-gate 
137*0Sstevel@tonic-gate 	if (name == NULL) return(NULL);
138*0Sstevel@tonic-gate 	if (conf != NULL)
139*0Sstevel@tonic-gate 		{
140*0Sstevel@tonic-gate 		if (section != NULL)
141*0Sstevel@tonic-gate 			{
142*0Sstevel@tonic-gate 			vv.name=(char *)name;
143*0Sstevel@tonic-gate 			vv.section=(char *)section;
144*0Sstevel@tonic-gate 			v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
145*0Sstevel@tonic-gate 			if (v != NULL) return(v->value);
146*0Sstevel@tonic-gate 			if (strcmp(section,"ENV") == 0)
147*0Sstevel@tonic-gate 				{
148*0Sstevel@tonic-gate 				p=Getenv(name);
149*0Sstevel@tonic-gate 				if (p != NULL) return(p);
150*0Sstevel@tonic-gate 				}
151*0Sstevel@tonic-gate 			}
152*0Sstevel@tonic-gate 		vv.section="default";
153*0Sstevel@tonic-gate 		vv.name=(char *)name;
154*0Sstevel@tonic-gate 		v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
155*0Sstevel@tonic-gate 		if (v != NULL)
156*0Sstevel@tonic-gate 			return(v->value);
157*0Sstevel@tonic-gate 		else
158*0Sstevel@tonic-gate 			return(NULL);
159*0Sstevel@tonic-gate 		}
160*0Sstevel@tonic-gate 	else
161*0Sstevel@tonic-gate 		return(Getenv(name));
162*0Sstevel@tonic-gate 	}
163*0Sstevel@tonic-gate 
164*0Sstevel@tonic-gate #if 0 /* There's no way to provide error checking with this function, so
165*0Sstevel@tonic-gate 	 force implementors of the higher levels to get a string and read
166*0Sstevel@tonic-gate 	 the number themselves. */
167*0Sstevel@tonic-gate long _CONF_get_number(CONF *conf, char *section, char *name)
168*0Sstevel@tonic-gate 	{
169*0Sstevel@tonic-gate 	char *str;
170*0Sstevel@tonic-gate 	long ret=0;
171*0Sstevel@tonic-gate 
172*0Sstevel@tonic-gate 	str=_CONF_get_string(conf,section,name);
173*0Sstevel@tonic-gate 	if (str == NULL) return(0);
174*0Sstevel@tonic-gate 	for (;;)
175*0Sstevel@tonic-gate 		{
176*0Sstevel@tonic-gate 		if (conf->meth->is_number(conf, *str))
177*0Sstevel@tonic-gate 			ret=ret*10+conf->meth->to_int(conf, *str);
178*0Sstevel@tonic-gate 		else
179*0Sstevel@tonic-gate 			return(ret);
180*0Sstevel@tonic-gate 		str++;
181*0Sstevel@tonic-gate 		}
182*0Sstevel@tonic-gate 	}
183*0Sstevel@tonic-gate #endif
184*0Sstevel@tonic-gate 
_CONF_new_data(CONF * conf)185*0Sstevel@tonic-gate int _CONF_new_data(CONF *conf)
186*0Sstevel@tonic-gate 	{
187*0Sstevel@tonic-gate 	if (conf == NULL)
188*0Sstevel@tonic-gate 		{
189*0Sstevel@tonic-gate 		return 0;
190*0Sstevel@tonic-gate 		}
191*0Sstevel@tonic-gate 	if (conf->data == NULL)
192*0Sstevel@tonic-gate 		if ((conf->data = lh_new(hash, cmp_conf)) == NULL)
193*0Sstevel@tonic-gate 			{
194*0Sstevel@tonic-gate 			return 0;
195*0Sstevel@tonic-gate 			}
196*0Sstevel@tonic-gate 	return 1;
197*0Sstevel@tonic-gate 	}
198*0Sstevel@tonic-gate 
_CONF_free_data(CONF * conf)199*0Sstevel@tonic-gate void _CONF_free_data(CONF *conf)
200*0Sstevel@tonic-gate 	{
201*0Sstevel@tonic-gate 	if (conf == NULL || conf->data == NULL) return;
202*0Sstevel@tonic-gate 
203*0Sstevel@tonic-gate 	conf->data->down_load=0; /* evil thing to make sure the 'OPENSSL_free()'
204*0Sstevel@tonic-gate 				  * works as expected */
205*0Sstevel@tonic-gate 	lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_hash),
206*0Sstevel@tonic-gate 			conf->data);
207*0Sstevel@tonic-gate 
208*0Sstevel@tonic-gate 	/* We now have only 'section' entries in the hash table.
209*0Sstevel@tonic-gate 	 * Due to problems with */
210*0Sstevel@tonic-gate 
211*0Sstevel@tonic-gate 	lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_stack),
212*0Sstevel@tonic-gate 			conf->data);
213*0Sstevel@tonic-gate 	lh_free(conf->data);
214*0Sstevel@tonic-gate 	}
215*0Sstevel@tonic-gate 
value_free_hash(CONF_VALUE * a,LHASH * conf)216*0Sstevel@tonic-gate static void value_free_hash(CONF_VALUE *a, LHASH *conf)
217*0Sstevel@tonic-gate 	{
218*0Sstevel@tonic-gate 	if (a->name != NULL)
219*0Sstevel@tonic-gate 		{
220*0Sstevel@tonic-gate 		a=(CONF_VALUE *)lh_delete(conf,a);
221*0Sstevel@tonic-gate 		}
222*0Sstevel@tonic-gate 	}
223*0Sstevel@tonic-gate 
value_free_stack(CONF_VALUE * a,LHASH * conf)224*0Sstevel@tonic-gate static void value_free_stack(CONF_VALUE *a, LHASH *conf)
225*0Sstevel@tonic-gate 	{
226*0Sstevel@tonic-gate 	CONF_VALUE *vv;
227*0Sstevel@tonic-gate 	STACK *sk;
228*0Sstevel@tonic-gate 	int i;
229*0Sstevel@tonic-gate 
230*0Sstevel@tonic-gate 	if (a->name != NULL) return;
231*0Sstevel@tonic-gate 
232*0Sstevel@tonic-gate 	sk=(STACK *)a->value;
233*0Sstevel@tonic-gate 	for (i=sk_num(sk)-1; i>=0; i--)
234*0Sstevel@tonic-gate 		{
235*0Sstevel@tonic-gate 		vv=(CONF_VALUE *)sk_value(sk,i);
236*0Sstevel@tonic-gate 		OPENSSL_free(vv->value);
237*0Sstevel@tonic-gate 		OPENSSL_free(vv->name);
238*0Sstevel@tonic-gate 		OPENSSL_free(vv);
239*0Sstevel@tonic-gate 		}
240*0Sstevel@tonic-gate 	if (sk != NULL) sk_free(sk);
241*0Sstevel@tonic-gate 	OPENSSL_free(a->section);
242*0Sstevel@tonic-gate 	OPENSSL_free(a);
243*0Sstevel@tonic-gate 	}
244*0Sstevel@tonic-gate 
245*0Sstevel@tonic-gate /* static unsigned long hash(CONF_VALUE *v) */
hash(const void * v_void)246*0Sstevel@tonic-gate static unsigned long hash(const void *v_void)
247*0Sstevel@tonic-gate 	{
248*0Sstevel@tonic-gate 	CONF_VALUE *v = (CONF_VALUE *)v_void;
249*0Sstevel@tonic-gate 	return((lh_strhash(v->section)<<2)^lh_strhash(v->name));
250*0Sstevel@tonic-gate 	}
251*0Sstevel@tonic-gate 
252*0Sstevel@tonic-gate /* static int cmp_conf(CONF_VALUE *a, CONF_VALUE *b) */
cmp_conf(const void * a_void,const void * b_void)253*0Sstevel@tonic-gate static int cmp_conf(const void *a_void,const  void *b_void)
254*0Sstevel@tonic-gate 	{
255*0Sstevel@tonic-gate 	int i;
256*0Sstevel@tonic-gate 	CONF_VALUE *a = (CONF_VALUE *)a_void;
257*0Sstevel@tonic-gate 	CONF_VALUE *b = (CONF_VALUE *)b_void;
258*0Sstevel@tonic-gate 
259*0Sstevel@tonic-gate 	if (a->section != b->section)
260*0Sstevel@tonic-gate 		{
261*0Sstevel@tonic-gate 		i=strcmp(a->section,b->section);
262*0Sstevel@tonic-gate 		if (i) return(i);
263*0Sstevel@tonic-gate 		}
264*0Sstevel@tonic-gate 
265*0Sstevel@tonic-gate 	if ((a->name != NULL) && (b->name != NULL))
266*0Sstevel@tonic-gate 		{
267*0Sstevel@tonic-gate 		i=strcmp(a->name,b->name);
268*0Sstevel@tonic-gate 		return(i);
269*0Sstevel@tonic-gate 		}
270*0Sstevel@tonic-gate 	else if (a->name == b->name)
271*0Sstevel@tonic-gate 		return(0);
272*0Sstevel@tonic-gate 	else
273*0Sstevel@tonic-gate 		return((a->name == NULL)?-1:1);
274*0Sstevel@tonic-gate 	}
275*0Sstevel@tonic-gate 
276*0Sstevel@tonic-gate /* Up until OpenSSL 0.9.5a, this was new_section */
_CONF_new_section(CONF * conf,const char * section)277*0Sstevel@tonic-gate CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
278*0Sstevel@tonic-gate 	{
279*0Sstevel@tonic-gate 	STACK *sk=NULL;
280*0Sstevel@tonic-gate 	int ok=0,i;
281*0Sstevel@tonic-gate 	CONF_VALUE *v=NULL,*vv;
282*0Sstevel@tonic-gate 
283*0Sstevel@tonic-gate 	if ((sk=sk_new_null()) == NULL)
284*0Sstevel@tonic-gate 		goto err;
285*0Sstevel@tonic-gate 	if ((v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL)
286*0Sstevel@tonic-gate 		goto err;
287*0Sstevel@tonic-gate 	i=strlen(section)+1;
288*0Sstevel@tonic-gate 	if ((v->section=(char *)OPENSSL_malloc(i)) == NULL)
289*0Sstevel@tonic-gate 		goto err;
290*0Sstevel@tonic-gate 
291*0Sstevel@tonic-gate 	memcpy(v->section,section,i);
292*0Sstevel@tonic-gate 	v->name=NULL;
293*0Sstevel@tonic-gate 	v->value=(char *)sk;
294*0Sstevel@tonic-gate 
295*0Sstevel@tonic-gate 	vv=(CONF_VALUE *)lh_insert(conf->data,v);
296*0Sstevel@tonic-gate 	assert(vv == NULL);
297*0Sstevel@tonic-gate 	ok=1;
298*0Sstevel@tonic-gate err:
299*0Sstevel@tonic-gate 	if (!ok)
300*0Sstevel@tonic-gate 		{
301*0Sstevel@tonic-gate 		if (sk != NULL) sk_free(sk);
302*0Sstevel@tonic-gate 		if (v != NULL) OPENSSL_free(v);
303*0Sstevel@tonic-gate 		v=NULL;
304*0Sstevel@tonic-gate 		}
305*0Sstevel@tonic-gate 	return(v);
306*0Sstevel@tonic-gate 	}
307*0Sstevel@tonic-gate 
308*0Sstevel@tonic-gate IMPLEMENT_STACK_OF(CONF_VALUE)
309